private void CourseDelete() { var user = Page.User as CustomPrincipal; if (user != null) { if (user.IsInRole("manager") || user.IsInRole(DbHelper.StaticValues.Roles.CourseEditor)) { var courseId = Request.QueryString["crsId"]; var categoryId = Request.QueryString["catId"]; if (courseId != null && categoryId != null) { var cId = Convert.ToInt32(courseId); using (var courseHelper = new DbHelper.Subject()) { var deleted = courseHelper.DeleteCourse(cId); if (deleted) { Response.Redirect("~/Views/Course/?catId=" + categoryId, false); } else { lblError.Visible = true; } } } } else { Response.Redirect("~/Views/All_Resusable_Codes/Error/ErrorPage.aspx?error=" + DbHelper.StaticValues.GetEncodedError(1) ); } } }